Information - Heated Oxygen Sensor Identification and Usage. GMC Truck GMC C Sierra

Subject:

Heated Oxygen Sensor Identification and Usage

Models:

2000 Chevrolet and GMC C/K Models (Silverado and Sierra)

with 4.8 L or 5.3 L V8 Engine (VINs V, T -- RPOs LM7, LR)

Two different styles of Heated Oxygen Sensors are used in the 2000 model year truck production.

•	Vehicles built at the Ft. Wayne (VIN Plant code Z) and Pontiac East (VIN Plant code E) assembly plants will use the Delphi Heated Oxygen Sensors (1 and 2).

•	Vehicles built at the Oshawa assembly plant (RPO OSG, VIN Plant code 1) will use the Denso Heated Oxygen Sensor (4).

Important:

•	Heated Oxygen Sensors cannot be used on any vehicle application other than what they were originally released for.

•	Different electrical connectors and connector colors, and different keys (3, 5) on similar electrical connectors, prevent the use of any Heated Oxygen Sensor other than the one released for that vehicle.

Heated Oxygen Sensors can be identified by the following illustration:


(1)	1 - Typical Bank 1 Sensor 1, Bank 2 Sensor 1 Delphi Heated Oxygen Sensor
(2)	Typical Bank 1 Sensor 2, Bank 2 Sensor 2 Delphi Heated Oxygen Sensor
(3)	Location of single key on black connector (Delphi Sensor)
(4)	Typical Denso Heated Oxygen Sensor, all locations
(5)	Location of two key's on gray connector (Denso Sensor)

Check the current GMSPO catalog for the correct Heated Oxygen Sensor Part Number.